Examine source code of Autumn dusk

{
  "theme": {
    "images": {
      "theme_frame": "Autumn-dusk03_01.jpg"
    },
    "colors": {
      "frame": "#d94a03",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Autumn dusk",
  "manifest_version": 2,
  "description": "秋の色は夕焼けの色。夕焼けの色は赤とんぼの色。\n赤とんぼの色は紅葉の色、紅葉の色は秋の色。\n全ての色が解け合って、暖かなハーモニーが心に響く。\n◎トンボ（Dragonfly）"
}